Das Element des ListView-Elements wiederholt sich nach einer bestimmten Position

Question

Ich habe eine ListView, die einige Daten als Titel und Untertitel arbeitet/anzeigt, alles funktioniert gut, aber jedes Mal, wenn ich in der Liste nach oben scrolle oder die ConvertView-Datei den Untertitel des letzten Elements erhalten wiederholt, während die Titel nicht, was das Problem ist ..

@Override 
public View getView(final int position, View convertView, ViewGroup parent) 
{ 


    final ViewHolder viewHolder; 
    m_oActivatedProfilePreferences =m_oContext.getSharedPreferences(m_kSHARED_PREF_PROFILE_KEY, Context.MODE_PRIVATE); 
    final CProfileDataSource profileDataSource = new CProfileDataSource(m_oContext); 
    final List<CUserProfile> profileName = profileDataSource.getAllProfiles(); 

    if(convertView==null) 
    { 
     viewHolder=new ViewHolder(); 
     convertView=layoutInflater.inflate(R.layout.profile_description,parent,false); 
     viewHolder.m_profileName=(TextView) convertView.findViewById(R.id.profilename); 
     viewHolder.m_radioButton=(RadioButton)convertView.findViewById(R.id.radioButton); 
     viewHolder.m_profileDetails=(TextView)convertView.findViewById(R.id.pro_details); 
     viewHolder.m_profileLyt=(LinearLayout)convertView.findViewById(R.id.profile); 
     if(position==0) 
     { 
      viewHolder.m_profileDetails.setText(R.string.general_profile_description); 
     }else if(position==1) 
     { 
      viewHolder.m_profileDetails.setText(R.string.sleep_profile_description); 
     }else if(position==2) 
     { 
      viewHolder.m_profileDetails.setText(R.string.ssaver_profile_description); 
     }else 
     { 
      //here for the 8th position of list it displays the text as position 0 

      viewHolder.m_profileDetails.setText(R.string.profile_desc); 
     } 
     convertView.setTag(viewHolder); 
     viewHolder.m_radioButton.setChecked(false); 
    } 
    else 
    { 
     viewHolder = (ViewHolder) convertView.getTag(); 
     viewHolder.m_radioButton.setChecked(false); 
    } 
    return convertView; 
} 

unter dem „else“ Teil der „viewHolder.m_profileDetails“ setzt ihren Text als Positionsnummer 0, während es Position ist 8 oder 9 in der Liste .

private static class ViewHolder{ 
    RadioButton m_radioButton; 
    TextView m_profileName; 
    TextView m_profileDetails; 
    LinearLayout m_profileLyt; 
} 

Answer 1

versuchen, diese getView Methode: -

@Override 
public View getView(final int position, View convertView, ViewGroup parent) 
{ 


    final ViewHolder viewHolder; 
    m_oActivatedProfilePreferences =m_oContext.getSharedPreferences(m_kSHARED_PREF_PROFILE_KEY, Context.MODE_PRIVATE); 
    final CProfileDataSource profileDataSource = new CProfileDataSource(m_oContext); 
    final List<CUserProfile> profileName = profileDataSource.getAllProfiles(); 

    if(convertView==null) 
    { 
     //always define viewholder object here and also link your xml components like textview using findViewById() method. 

     viewHolder=new ViewHolder(); 
     convertView=layoutInflater.inflate(R.layout.profile_description,parent,false); 
     viewHolder.m_profileName=(TextView) convertView.findViewById(R.id.profilename); 
     viewHolder.m_radioButton=(RadioButton)convertView.findViewById(R.id.radioButton); 
     viewHolder.m_profileDetails=(TextView)convertView.findViewById(R.id.pro_details); 
     viewHolder.m_profileLyt=(LinearLayout)convertView.findViewById(R.id.profile); 

     convertView.setTag(viewHolder); 
     viewHolder.m_radioButton.setChecked(false); 
    } 
    else 
    { 
     // This tag viewHolder object helps you to reuse your object. 
     viewHolder = (ViewHolder) convertView.getTag(); 
     viewHolder.m_radioButton.setChecked(false); 
    } 
    // Always do setText(),onClick like operation on components here so here viewHolder decide which UI components need to use. 

    if(position==0) 
     { 
      viewHolder.m_profileDetails.setText(R.string.general_profile_description); 
     }else if(position==1) 
     { 
      viewHolder.m_profileDetails.setText(R.string.sleep_profile_description); 
     }else if(position==2) 
     { 
      viewHolder.m_profileDetails.setText(R.string.ssaver_profile_description); 
     }else 
     { 
      //here for the 8th position of list it displays the text as position 0 

      viewHolder.m_profileDetails.setText(R.string.profile_desc); 
     } 
    return convertView; 
} 

Lassen Sie mich wissen, wenn alle Fehler immer darin